Clutch bearing for vehicles



Maich 13, 1928. 1,662,601

P. DEMCHUK CLUTCH BEARING FOR VEHICLES u Filed April 21. 1927 Rin i 1E5 INVENTOR @vom ASMI-M BY ELSE.

Patented Mar. 13, 19.28.

Lauter PETER DEMCHUK, or BROOKLYN, yNEW YORK.

CLUTCH BEARING FOR VEHICLES.

Application filed. April 21, 1927. Serial No. 185,480.

This application is for similar subject matter as my application, Serial No. 177,433,

filed March 22, 1927, for Clutch bearing for vehicles.

This invention relates to a neuT and useful device in the nature of a clutch release bearing particularly adapted for use in connection With motor vehicle clutches for the purpose of providing a clutch release bearing which will permit the clutch to be disengaged Without diliiculty.

The object of the invention is to provide a clutch release bearing of novel construction and arrangement of parts. y

A further object of the invention is to provide a novel means of retaining the clutch release bearing in the clutch release collar.

The above, and other objects are hereinafter more fully described, claimed, and illustrated in the accompanying drawing.

Fig. 1 is a vertical sectional view of a" motor vehicle clutch embodying my iinproved clutch release bearing.

` Fig. 2 is an enlarged detail sectional view of my improved clutch release bearing, illustrating in particular the method of retailiing same in the clutch release collar.

Fig. 3 is' a. front view thereof.

Fig. 4 is a view similar to Fig. 3, but illustrating a modification of the invention.

Fig. 5 is an enlarged fragmentary view of Fig. 4.

Fig. 6 is a sectional view of a modified form of the invention, viewed as though taken on the line of Fig. y2.

The ily Wheel 10 is attached to the anged portion 11 of the crankshaft 12 which provided with an axial aperture adapted to support the pilot bearing 13, and to receive the forward portion 14 of the 'clutch shaft 15, so as to support the clutch shaft 15. The driving disc` 16 is attached to the clutch hub 17, slidably mounted on the clutch shaft 15. The clutch shaft 15 is serrated or splined, as at 18, adapted to enga-ge in similar serrations formed in the axial aperture of the clutch hub 17, so as to permit the clutch hub 17 to rotate or drive the clutch shaft 15. The clutch friction rings 19 and 2O are positioned in contact With, and at each side of the driving disc 16, and are provided With serrated outer peripheries, adapted to engage in the serrated recess 20 formed in the fly Wheel 10. The expansion springs 21 are positioned intermediate the clutch cover` and the clutch plate 23, so as to normally hold the driving disc 16 and the clutch friction rings 19 and 2O in Contact, so as to permit the liy Wheel 10 Whenrotated to rotate the clutch shaft 15. v

The clutch fork 24 is pivoted intermediately as at 25, to the transmission support 26. The clutch fork 24 is' provided with a forked portion 27 pivotally attached as at 28 to both sides of the clutch releaseeollar 29. They clutch release collar 29 is of ring shaped construction, positioned over, or around the clutch shaft 15. The thrust The above described construction is common to motor vehicle clutches in general, and is such as will permit the extended extremity 31, of the ,clutch `fork 24, when pulled or forced outwardly, to permit the kclutch release bearing 30 to engage the release collar 31, slidably mounted on the clutch `shaft 15, so as to allow the release collar 31 to engage the release levers 32, pivotally attached, as at 33, to the ily Wheel 10. The extended portions 34 of the release ylevers 32 engage in extended portions 35 of the clutch plate 23, so as to release the springs 21 which Will allow the driving disc ltand the clutch plates 19 and 2O to be disengaged, causing the clutch shaft 15 to stop rotating, as is necessary to permit the gears of the `transmission to be shifted.

It should be understood that 1 do not claim the above described construct-ion, same being explanatory to more precisely and intelligently understand myk invention,

As here embodied `my improved clutch release bearing comprises an inner ball race 40, frictionally mounted in a'rcces's kformed in the clutch collar 20. vThe inner ball race 40 is provided with a co-axial groove adapted to receive the ballbearings 41, held in the desired relative lposition by the usual retainer 42. The. outer ball race 42:3 `is provided With a tro-axial groove adapted to receive the ball bearings 41. 'Ehe outer ball race 43 is provided with an outer tapered edge 44. A retaining ring 45 of spring steel, is split as at 45, and is engaged in a circular groove 29 formed inthe clutch collar 29, and this retaining ring is abutable against the tapered edge 44, securely, and rotatably holding the outer ball race 43 in position.

Referring in particular to Figs. 4 and 5 of the drawing, a.- modilication has been illustrated disclosing a retaining ringl la split at l5" and 415C. A rod 4G extends through an aperture t7 in the clutch collar Qt), and the lower end ol' the said rod projet-ts within split Ll5. Cam shaped levers hrt8 are pirotally mounted at, their lower ends to the lower end of rod 4G. and the upper portions of the eam shaped levers 41S abut againsty the groote 25) while the ends abut against the ends ot ring 45 forming the split. The top ot the rod lo is threadedly engaged bj' nuts 4S. The turning ot nuts 4S causes the rod 4G to more upwards, foreing the levers 41S against the ends ot the split l5 rigidljY holding ring 45 in place.

The modification illustrated in Fig. G discloses a rim Q9 'from the clutch collar 2t), holding` the outer race 43 in place, while the clutch eollar Qt) is `formed with a plug portion Q9" adapted to hold the inner race 10 in place.

I hare also provided a grease cup :'50, secured to the bracket 51, attached to the transmission .support 26. The flexible member 52 is attached to the grease cup and to the clutch collar 39, as a means of lubricating the ball bearing 4t).

llhile I have illustrated and described the preferred form, constructitm.r and ar rangement of the several elements employed, it will be understood that the device is nevertheless susceptible of considerable modification therein, and I therefore reserve the right. and privilege of resorting to all such changes as may be fairly embodied within the spirit and scope of the invention as trlaimed.

Having thus described my invention what l claim as new and desire to secure by United States Letters Patent is:

l. In a device ot the class described, the con'ibination with a. clutch release bearing, ot a clutch release collar holding the bearing. and formed with a circular groove, a split retaining ring engaged in the groove and adapted to hold the bearing in place, and adjustable means comprising cam levers supported bj' said collar and disposed in the split of said retaining ring adapted to spread the end portions thereof for securing the ring against displacement.

Q. In a device of the class deseribet'l, the

coml'tination with a clutch release hearing.` ot a clutch release collar holding the hear ing. and formed With a circular groove. split retaining ring engaged in the groove and adapted to hold thev bearing in place= ay rod extending through the collar, the lower end thereof projecting within a split ol the split retaining ring, cam shaped levers pirotally mounted at; their lower ends to the lower end ot the rod, the upper portionsot the eam shaped levers. abutting against the said groove. and the ends against the ends ot the retaining ring forming the said split. and nuts tln'eadedly engaged on the top end of the rod, adapted upon being turned to more the rod upwards, forcing the, levers against the ends ot the split. thus rigidly holding the ring in place.

fl. In a device of the class deserilmd, a collar having a circumferential groote in the inner periphery thereof and an aperture communicative with said groove btairing members disposed within said collar. a retaining member mounted in said groote for retaining said bearing member in said collar comprising ring sections, a bolt disposed through said aperture and extending hctween adjacent ends ot said ring sections, levers pirotalljv mounted on the inner end of' .said bolt and engaged against one pair of adjacent extremities ol" said ringr sections. and means comprising a nut threaded on Isaid bolt adapted to be tightened for rotat ing said levers to spread said ring .section tor holding the same in said groore.

il. ln a device of the class` described. a collar haring a cirtannt'erential groove in the inner peripherjv thereof and an aperture connnnnieatire with said groove bearing membersl disposed within said collar. a re taining member mounted in said groove for retainingr said bearing member in said collar compris' ig ring sections. and adjustable means Aror securing `said ring sections against displacement comprising levers pirotallj' mounted within said collar and disposed between two adjacent ends of said ring sections for urging said ends apart.

ln testimony whereof I have atlixed my signature.

PETER DEM (tlll l IC 

